A method and apparatus for medium access control in a receiver is shown, involving frequency hopping through each of a plurality of channel frequencies for the receiver, monitoring a baseband section of the receiver using a data quality detector (DQD) circuit configured to assert a DQD signal when valid...http://www.google.com.hk/patents/US7822397?utm_source=gb-gplus-share專利 US7822397 - Method and apparatus for frequency hopping medium access control in a wireless network
